build script. os x matches on osfamily=unix, in fact. kill redundant call. fixes #272
build script. os x matches on osfamily=unix, in fact. kill redundant call. fixes #272

jacquesdeklerk/jacquesdeklerk,derekandtereza/derekandtereza.github.com,h5bp/ant-build-script,thetrickster/foundation-bc,scraperwiki/urchin-website,scraperwiki/urchin-website,lhagan/PlainReader,jacquesdeklerk/jacquesdeklerk,lhagan/PlainReader,jacquesdeklerk/jacquesdeklerk,lhagan/PlainReader,lhagan/PlainReader,derekandtereza/derekandtereza.github.com,firnny29-cts/helloworld1,thetrickster/foundation-bc,thetrickster/foundation-bc,fady/ant-build-script,seanoshea/krissyoshea,thetrickster/foundation-bc,lhagan/PlainReader,scraperwiki/urchin-website,seanoshea/krissyoshea